The teacher spoke of some writers and some books ________ we need to know.
Walking to school is ______ good exercise.
— Jim, never cross the road here. There are too many cars. — Thanks. _______________.
— ____________ is it from YiXing to WuXi? — It’s about 60 kilometres ____________ Yi Xing.
There _____________ two football matches at school next month.
____________ do you want to go with me at this weekend?